html, body{
  margin 0
  padding 0
  width 100%
  height 100%
}
body{
  //background-image: url('../images/bg1.png')
  //background-size: cover
  //background-repeat no-repeat
  //background-position: center;
  font: 14px 'Helvetica Neue', Helvetica, Arial, sans-serif;
  color: #4d4d4d;
  font-smoothing: antialiased;
  font-weight: 300;
}

// 全局样式
.fade-enter-active, .fade-leave-active {
  transition: opacity 0.5s
}
.fade-enter, .fade-leave-to {
  opacity:0
}
